NVCC-AN M25NV120 Project Drawings 2026-09-15.pdf

DRAWING LIST:

SITE LOCATION

SITE

NORTH NORTH

PROJECT LOCATION MAPVICINITY MAP

ASBESTOS DISCLOSURE STATEMENT:

LEAD PAINT DISCLOSURE STATEMENT:

DRAWING NO TITLE

T1 TITLE SHEET

D1 DEMOLITION PLAN - AHU-1

D2 DEMOLITION PLAN - AHU-2

D3 DEMOLITION PLAN - AHU-3

ME1 MECHANICAL LEGEND, SPECIFICATIONS, AND DETAILS

ME2 ELECTRICAL LEGEND, ABBREVIATIONS, GENERAL NOTES, AND SPECIFICATIONS

ME3 NEW WORK PLAN - AHU-1

ME4 NEW WORK PLAN - AHU-2

ME5 NEW WORK PLAN - AHU-3

ME6 EQUIPMENT SCHEDULES

ME7 CONTROLS - AHU-1 AND AHU-2

ME8 CONTROLS - AHU-3

AN ASBESTOS INSPECTION WAS NOT PERFORMED BECAUSE ALL PORTIONS OF THE EXISTING BUILDING THAT MAY BE AFFECTED BY THE WORK WERE ORIGINALLY CONSTRUCTED AFTER JANURARY 1, 1985. IF SUSPECT MATERIALS ARE ENCOUNTERED OR WILL BE DISTURBED, WORK SHALL STOP AND THE MATERIALS SHALL BE EVALUATED BEFORE PROCEEDING.

AN INSPECTION TO IDENTIFY LEAD CONTAINING OR COATED BUILDING COMPONENTS HAS NOT BEEN CONDUCTED BECAUSE THE BUILDING WAS CONSTRUCTED AFTER JANUARY 1, 1985 AND THE OWNER HAS NO KNOWLEDGE OF LEAD CONTAINING OR COATED BUILDING COMPONENTS IN THE BUILDING. IT IS THE CONTRACTOR'S RESPONSIBILITY TO COMPLY WITH ALL VIRGINIA OCCUPATIONAL SAFETY AND HEALTH (VOSH) REGULATIONS AS THEY PERTAIN TO EMPLOYEE EXPOSURE TO LEAD. ALL LEAD AND LEAD-COATED BUILDING COMPONENTS

SHALL BE RECYCLED TO THE EXTENT POSSIBLE.

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

FOR BIDDING / CONSTRUCTION

SEPTEMBER 15, 2026

Drawing No.:

Project No.:

1"

Full Scale Verification

0"

T1

26007

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VA 24551

PHONE: (434) 316-6001

VAE PROJECT NO: 26007

DISCLAIMER STATEMENT:

VIRGINIA A&E ASSUMES NO RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE ASBESTOS AND LEAD BASED PAINT INFORMATION PROVIDED ABOVE BY THE OWNER. THE CONTRACTOR SHALL ADDRESS ANY RELATED QUESTIONS TO THE OWNER'S PROJECT MANAGER.

I 495

RT 50

LITTLE RIVER

TURNPIKE

RT 620

LITTLE RIVER

TURNPIKE

WEST DR

EAST DR

CENTER DR

GENERAL INFORMATION:

PROJECT INFORMATION:

AGENCY: NORTHERN VIRGINIA COMMUNITY COLLEGE

PROJECT TITLE: NVCC - ANNANDALE CAMPUS CE REPLACE AHUs

PROJECT CODE: M25NV120

INSTITUTION: ANNANDALE CAMPUS

ADDRESS: 8333 LITTLE RIVER TURNPIKE, ANNANDALE, VIRGINIA 22003

BUILDING INFORMATION:

BUILDING NAME/NUMBER: BUILDING CE

WORK PERMITTED: IN-KIND EQUIPMENT REPLACEMENT

PURPOSE/OCCUPANCY: MIXED USE

USE GROUP CLASSIFICATION: THEATER, MULTI-PURPOSE, OTHER

TYPE OF CONSTRUCTION: IB & IIB

OCCUPANT LOAD OF BUILDING: EXISTING - UNCHANGED

OCCUPANCY LOAD OF RENOVATED AREA: EXISTING - UNCHANGED

BUILDING HEIGHT (FEET): 40'-0"± ABOVE GRADE

NUMBER OF STORIES: 2

GROSS AREA (GSF): 55,294 GROSS SQUARE FEET

BUILDING VOLUME: 1,220,801 CUBIC FEET

CODE MODIFICATIONS ISSUED: N/A

APPLICABLE CODES & STANDARDS:

BUILDING CODES: 2021 VIRGINIA UNIFORM STATEWIDE BUILDING CODE - VUSBC

(EFFECTIVE JANUARY 18, 2024)

VIRGINIA CONSTRUCTION CODE - VCC (2021)

VIRGINIA MECHANICAL CODE - VMC (2021)

VIRGINIA EXISTING BUILDING CODE - VEBC (2021)

VIRGINIA ENERGY CONSERVATION CODE - VECC (2021)

NATIONAL ELECTRICAL CODE - NFPA-70 (2020)

NATIONAL FIRE ALARM CODE - NFPA-72 (2019)

ACCESSIBILITY STANDARDS: ADA90-TITLE II: CHAPTER 2 OF 2010 ADA STANDARD FOR ACCESSIBLE DESIGN DATED

SEPTEMBER 15, 2010 AND CHAPTERS 1 AND 3 THROUGH 11 OF STANDARDS FOR

ACCESSIBLE AND USABLE BUILDINGS AND FACILITIES (ICC A117.1-2017) APPROVED

MARCH 28, 2017.

OTHER STANDARDS: CONSTRUCTION AND PROFESSIONAL SERVICES MANUAL - CPSM 2026 EDITION, REVISION 0

(JULY 31, 2026)

VIRGINIA COMMUNITY COLLEGE SYSTEM CONSTRUCTION AND PROFESSIONAL SERVICES

MANUAL - MARCH 5, 2026

NORTHERN VIRGINIA COMMUNITY COLLEGE DESIGN GUIDELINES - Q1 2023 EDITION

GENERAL NOTES:

1. THESE DRAWINGS ARE SCHEMATIC IN NATURE AND ARE NOT INTENDED FOR USE AS

FABRICATION DRAWINGS. THESE DRAWINGS INDICATE THE GENERAL AND APPROXIMATE

SIZE AND LOCATION OF MATERIAL. FIELD VERIFY ALL DIMENSIONS AND LOCATIONS

PRIOR TO BEGINNING WORK. ALL UTILITIES NOTED ON PLANS ARE APPROXIMATE AND

CONTRACTOR SHALL FIELD VERIFY LOCATION.

2. ALL WORK SHALL BE INSTALLED IN ACCORDANCE WITH APPLICABLE CODES AND

REGULATIONS, INCLUDING, BUT NOT LIMITED TO, THE 2021 VIRGINIA UNIFORM

STATEWIDE BUILDING CODE (JANUARY 18, 2024) AND ASSOCIATED CODES OF

REFERENCE. REFER TO APPLICABLE CODES LIST THIS DRAWING.

3. ALL MATERIAL SHALL BE NEW UNLESS OTHERWISE NOTED. NO ASBESTOS CONTAINING

MATERIALS SHALL BE USED. MATERIALS ARE BASED ON THE INDICATED

MANUFACTURER'S/MODELS AND ARE INTENDED ONLY TO SHOW THE GENERAL SIZE,

CONFIGURATION, LOCATION, CONNECTIONS, AND SUPPORT FOR INDICATED MATERIAL

WITH RELATION TO OTHER BUILDING SYSTEMS. MATERIAL BY ANY MANUFACTURER THAT

MEETS THE SCHEDULED CRITERIA IS ACCEPTABLE. CONTRACTOR SHALL BE

RESPONSIBLE FOR COORDINATING ACTUAL INSTALLED MATERIAL AND ASSOCIATED

CHANGES.

4. CONTRACTOR SHALL COORDINATE THE WORK WITH EXISTING CONDITIONS, INCLUDING

BEAMS, COLUMNS, SITE FEATURES, AND OTHER OBSTRUCTIONS, WHETHER OR NOT

SUCH IS SHOWN ON DRAWINGS.

5. CONTRACTOR SHALL COORDINATE THE WORK BETWEEN ALL TRADES. MATERIAL

LOCATIONS SHALL BE COORDINATED BETWEEN MECHANICAL, ELECTRICAL, AND

DEMOLITION PLANS TO AVOID CONFLICTS.

6. EXISTING MATERIAL TO BE REMOVED SHALL BE REMOVED CAREFULLY TO AVOID

DAMAGING MATERIAL TO REMAIN. THE CONTRACTOR SHALL BE RESPONSIBLE FOR

DAMAGE THAT OCCURS TO EXISTING MATERIAL TO REMAIN OR TO BE RELOCATED

DURING DEMOLITION AND CONSTRUCTION.

7. CONTRACTOR SHALL ADVISE THE A/E IMMEDIATELY OF DISCREPANCIES FOUND ON THE

DRAWINGS, IN THE SPECIFICATIONS, OR BETWEEN THE TWO. WHERE CONFLICTS ARE

ENCOUNTERED, THE AFFECTED WORK SHALL NOT BE INSTALLED UNTIL THE CONFLICT

HAS BEEN RESOLVED. NEITHER THE A/E NOR THE OWNER SHALL BE RESPONSIBLE FOR

CONSEQUENCES OF PROCEEDING WITH WORK BASED ON CONTRACTOR

INTERPRETATION OR ON DIRECTION FROM OTHER PARTIES, INCLUDING THE OWNER

AND INSPECTORS.

8. ALL MATERIAL SHALL BE INSTALLED ACCORDING TO MANUFACTURER'S WRITTEN

INSTALLATION INSTRUCTIONS, MAINTAINING ALL REQUIRED CLEARANCES AND WITH ALL

COMPONENTS ACCESSIBLE AND SERVICEABLE.

9. CONTRACTOR SHALL PROVIDE MATERIAL DATA SUBMITTALS FOR ALL NEW MATERIAL.

REFER TO INDIVIDUAL DRAWINGS FOR ADDITIONAL SUBMITTAL REQUIREMENTS. THE

CONTRACTOR SHALL PROVIDE A SUBMITTAL SCHEDULE WITHIN 30 DAYS OF AWARD OF

CONTRACT.

10. CONTRACTOR SHALL BE RESPONSIBLE FOR ASSEMBLING OPERATION AND

MAINTENANCE MANUALS CONTAINING ALL MATERIAL SUBMITTALS, INSTALLATION AND

OPERATING INSTRUCTIONS, AND WARRANTY INFORMATION. ONE (1) ELECTRONIC PDF

COPY OF O&M MANUALS SHALL BE SUBMITTED TO THE A/E FOR REVIEW AT THE TIME OF

SUBSTANTIAL COMPLETION. PROVIDE THREE (3) HARD COPIES AND ONE (1) ELECTRONIC

PDF COPY OF THE FINAL O&M MANUALS TO THE OWNER.

11. CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING A SET OF AS-BUILT DRAWINGS

ON SITE WHICH INDICATE IN RED ALL DEVIATIONS FROM ORIGINAL CONSTRUCTION

DOCUMENTS, INCLUDING APPROVED CONSTRUCTION CHANGE ORDERS. AS-BUILT

DRAWINGS SHALL BE SUBMITTED TO THE A/E AT THE TIME OF SUBSTANTIAL

COMPLETION. AS-BUILT DRAWINGS SHALL BE CLEARLY LEGIBLE AND COMPLETE.

12. CONTRACTOR SHALL KEEP PUBLIC AREAS FREE OF TRASH AND CONSTRUCTION DEBRIS

AND CLEAN ENTIRE WORK AREA ON A DAILY BASIS.

13. TEMPORARY POWER AND WATER SERVICE ARE AVAILABLE ON SITE FOR THE

CONTRACTOR'S USE. CONTRACTOR SHALL COORDINATE ACCESS WITH OWNER AND

SHALL PROVIDE ANY REQUIRED TEMPORARY CONNECTIONS AND EXTENSIONS.

14. CONTRACTOR'S PERSONNEL MAY USE THE TOILET FACILITIES IN THE BUILDING FOR THE

DURATION OF THE PROJECT. CONTRACTOR SHALL BE RESPONSIBLE FOR KEEPING

TOILET FACILITIES CLEAN.

15. CONTRACTOR SHALL VISIT THE SITE TO BECOME FAMILIAR WITH THE SCOPE OF WORK

AND TO VERIFY EXISTING CONDITIONS PRIOR TO BIDDING THIS PROJECT. ANY

DISCREPANCIES OR AMBIGUOUS ITEMS MUST BE REPORTED TO THE A/E AND THE

OWNER FOR CLARIFICATION PRIOR TO BIDDING.

16. CONTRACTOR IS TYPICALLY PERMITTED TO WORK BETWEEN 7:00 AM AND 5:00 PM

MONDAY THRU FRIDAY. WORK OUTSIDE THESE HOURS SHALL BE COORDINATED WITH

OWNER'S PROJECT MANAGER DURING CONSTRUCTION. CONTRACTOR SHALL

COORDINATE CONSTRUCTION ACTIVITIES WITH OWNER AND BUILDING TENANTS FOR

SPECIAL EVENTS.

17. CONTRACTOR SHALL PROVIDE A DUST-PROOF BARRIER BETWEEN THE CONSTRUCTION

ZONE AND OCCUPIED PORTIONS OF THE BUILDING. CONTRACTOR SHALL FILTER

EXISTING HVAC GRILLES IN WORK AREA TO MITIGATE SPREAD OF DUST INTO OCCUPIED

AREAS OF THE BUILDING.

18. CONTRACTOR SHALL PROTECT THE BUILDING, ADJACENT FEATURES, ROADWAYS,

WALKWAYS, SITE IMPROVEMENTS, EXTERIOR PLANTINGS, LANDSCAPING, ETC AS

REQUIRED FROM DAMAGE AND CORRECT DAMAGE RESULTING FROM CONSTRUCTION

ACTIVITIES TO THE SATISFACTION OF THE OWNER.

19. CONTRACTOR SHALL COLLECT DEMOLISHED MATERIALS AND PLACE IN APPROPRIATE

DISPOSAL CONTAINERS. DEMOLISHED MATERIALS SHALL BE PROMPTLY REMOVED FROM

THE OWNER'S PROPERTY AND DISPOSED OF LEGALLY.

20. CONTRACTOR SHALL COORDINATE MATERIAL STORAGE AND DUMPSTER LOCATION WITH

OWNER DURING CONSTRUCTION.

21. CONTRACTOR SHALL BE RESPONSIBLE FOR SITE SAFETY AND SECURITY FOR THE

DURATION OF THE PROJECT.

22. CONTRACTOR SHALL PROVIDE PRE-DEMOLITION PHOTOGRAPHIC OR VIDEOGRAPHIC

DOCUMENTATION TO SHOW EXISTING CONDITIONS OF FINISHED SURFACES IN WORK

AREA AND ADJOINING CONSTRUCTION INCLUDING SITE STORAGE AND ACCESS AREAS

PRIOR TO PRE-CONSTRUCTION MEETING AND A MINIMUM OF 10 WORKING DAYS PRIOR

TO COMMENCEMENT OF WORK.

23. CONTRACTOR SHALL NOTIFY OWNER OF ANY INTERRUPTION OF UTILITIES INCLUDING

BUT NOT LIMITED TO POWER, WATER, COMMUNICATIONS, ETC AND COORDINATE

OUTAGE WITH OWNER AND ALL BUILDING TENANTS.

24. ANY ROAD/PARKING LOT CLOSURE SHALL BE DONE IN ACCORDANCE WITH THE LATEST

VERSION OF THE VIRGINIA WORK AREA PROTECTION MANUAL.

25. DEFINITIONS:

FURNISH: SUPPLY AND DELIVER TO PROJECT SITE FOR INSTALLATION BY OTHERS.

INSTALL: INSTALL ITEMS FURNISHED BY OTHERS, INCLUDING UNLOADING, TEMPORARILY

STORING, UNPACKING, AND ASSEMBLY.

PROVIDE: FURNISH AND INSTALL, COMPLETE AND READY FOR THE INTENDED USE.

REMOVE: DETACH ITEMS FROM EXISTING CONSTRUCTION AND LEGALLY DISPOSE OF

THEM OFF-SITE UNLESS INDICATED TO BE REMOVED AND SALVAGED OR REMOVED AND

REINSTALLED.

REMOVE AND REINSTALL: DETACH ITEMS FROM EXISTING CONSTRUCTION, PREPARE

FOR REUSE, AND REINSTALL WHERE INDICATED.

REMOVE AND SALVAGE: CAREFULLY DETACH FROM EXISTING CONSTRUCTION, IN A

MANNER TO PREVENT DAMAGE, AND DELIVER TO OWNER.

26. CONTRACTOR SHALL ENGAGE OWNER'S CONTROL VENDOR (SCHNEIDER ELECTRIC) FOR

ALL CONTROLS SCOPE. REFER TO DRAWINGS ME7 AND ME8.

27. CONTRACTOR SHALL COORDINATE WITH AND ASSIST OWNER'S COMMISSIONING AGENT

FOR FUNCTIONAL TESTING OF EQUIPMENT AND CONTROLS. REFER TO SPECIFICATION

SECTIONS 019100, 019110, 230800, AND 230810.

PHASING NOTES:

1. CONTRACTOR SHALL MEASURE AIR AND WATER FLOWS AT EACH AIR HANDLING

UNIT AND FAN AND REPORT RESULTS TO ENGINEER BEFORE PREPARING

EQUIPMENT SUBMITTALS.

2. DEMOLITION SHALL NOT TAKE PLACE UNTIL NEW EQUIPMENT IS ON SITE.

3. AIR HANDLING UNITS SHALL BE DELIVERED ASSEMBLED TO CONTRACTOR'S

OFFSITE STORAGE LOCATION FOR DISASSEMBLY.

4. PHASE 1 SHALL INCLUDE AHU-1, AHU-2, RAF-1, AND RAF-2. PHASE 1 SHALL BE

COMPLETED FIRST AND PRIOR TO THE START OF PHASE 2. THE WORK IN PHASE 1

IS CRITICAL TO RESTORING OPERATION OF THE THEATER AND SHALL BE

PRIORITIZED ACCORDINGLY. PHASE 1 SHALL BE SUBSTANTIALLY COMPLETE

WITHIN SIXTY (60) CONSECUTIVE CALENDAR DAYS FROM COMMENCEMENT OF

PHASE 1 WORK.

5. PHASE 2 SHALL INCLUDE AHU-3 AND RAF-3. PHASE 2 SHALL COMMENCE ONLY

AFTER SUBSTANTIAL COMPLETION OF PHASE 1. PHASE 2 SHALL BE

SUBSTANTIALLY COMPLETE WITHIN THIRTY (30) CONSECUTIVE CALENDAR DAYS

FROM COMMENCEMENT OF PHASE 2 WORK.

6. THE ENTIRE PROJECT SHALL ACHIEVE SUBSTANTIAL COMPLETION WITHIN NINETY

(90) CONSECUTIVE CALENDAR DAYS OF THE NOTICE TO PROCEED.

7. THE OWNER'S TARGET CONSTRUCTION WINDOW IS AUGUST 2027 THROUGH

NOVEMBER 2027. CONTRACTOR SHALL PLAN PROCUREMENT, SUBMITTALS,

DELIVERY, AND CONSTRUCTION ACTIVITIES TO SUPPORT THIS TARGET

COMPLETION WINDOW.

8. FINAL COMPLETION, INCLUDING PUNCH LIST ITEMS AND CLOSEOUT

DOCUMENTATION, SHALL BE ACHIEVED WITHIN THIRTY (30) CONSECUTIVE

CALENDAR DAYS FOLLOWING SUBSTANTIAL COMPLETION.

Lic. No. 035249

STEVEN M. HOVIS

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026 09/15/2026

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

SCALE:

NORTH

6"0 1' 2' 5' 1/2"=1'-0"

DEMOLITION PLAN - AHU-1

AHU-1

PAD

9'-3 1/2" x48 24

8' -2

/4

RAF-1

42x24

48x24

36x34

34x3430x26

A D1 D1

1 2

CONTROL

PANEL

FLEX

TYP OF 2

2"CWS/R

2"HWS/R

FD

SAT

FRZ

MAT

RAT

RET

REL

OA

SCALE:

6"0 1' 2' 5'

1/2"=1'-0"

AHU-1 ELEVATIONA

D1 D1

FINISHED

FLOOR

WALLWALL

PAD

FILTER

COILS

RETURN

PLENUM

3"

4' -2

/4

4' -0

2"

FLEXFLEX

SUPPLY FAN

AHU-1

48x24 34x34

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

GENERAL NOTES:

1. REFER TO ELECTRICAL AND MECHANICAL DRAWINGS FOR ADDITIONAL

DEMOLITION AND ALTERATION NOTES.

2. CUTTING AND PATCHING: ANY EXISTING CONSTRUCTION THAT IS TO BE

REMOVED SHALL BE REMOVED CAREFULLY SO AS NOT TO DAMAGE ANY

EXISTING CONSTRUCTION THAT IS TO REMAIN.

3. ALL EXISTING FIREPROOFING REMOVED DURING DEMOLITION SHALL BE

PATCHED TO MATCH EXISTING.

4. CONTRACTOR SHALL MEASURE AIR AND WATER FLOWS AT AHU-1 AND AIRFLOW

AT RAF-1 AND REPORT RESULTS TO ENGINEER PRIOR TO PREPARING

EQUIPMENT SUBMITTALS.

5. RETAIN EXISTING BRANCH CIRCUITS TO FURTHEST EXTENT FEASIBLE FOR

REMOVED EQUIPMENT FOR RECONNECTION.

6. REPLACE CONTROLS DEVICES ASSOCIATED WITH AHU-1 AND RAF-1 SEQUENCE

OF OPERATIONS. REFER TO DRAWING ME7. AIRFLOW MEASURING STATION

SHALL BE REMOVED AND NOT REPLACED.

DEMOLITION SYMBOLS LEGEND:

DEMOLITION NOTE

LIMIT OF DEMOLITION

DEMOLITION PLAN - AHU-1

D1

X

DEMOLITION NOTES:XX

1. DISCONNECT HYDRONIC AND DRAIN PIPING. REMOVE SUPPLY AND RETURN DUCT

TO POINTS INDICATED. REMOVE AHU. PAD TO REMAIN.

2. DISCONNECT AND REMOVE CONTROLS DEVICES. RETAIN WIRING. REFER TO I/O

POINTS LIST ON DRAWING ME7.

3. REMOVE FAN, DUCT TRANSITIONS, AND FLEXIBLE CONNECTORS.

4. REMOVE DRAIN LINES.

5. REMOVE DISCONNECT. RETAIN BRANCH CIRCUIT FOR RECONNECTION.

MATERIAL TO BE DEMOLISHED

Lic. No. 035249

STEVEN M. HOVIS

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026 09/15/2026

AutoCAD SHX Text M

AutoCAD SHX Text T

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text C

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text T

AutoCAD SHX Text T

AutoCAD SHX Text T

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text M

AutoCAD SHX Text V

AutoCAD SHX Text M

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

0 6" 2'1' 3' 4' 5' 3/8"=1'-0"

DEMOLITION PLAN - AHU-2

AHU-2

A D2 D2

8' -2

PAD

11'-3"

RAF-2

PLENUM

36x26 x2 x2 x3

1 2

FLEX

TYP OF 2

FD

FRZ

FD

RET

REL

OA

RAT

SCALE:

0 6" 2'1' 3' 4' 5'

3/8"=1'-0"

AHU-2 ELEVATIONA

D2 D2

FINISHED

FLOOR

WALLWALL

COILS

RETURN

PLENUM

FILTER

3/

4"

4' -2

/4

3' -1

1/

2"

SUPPLY FAN

AHU-2

PAD

3"CWS/R

2"HWS/R

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

DEMOLITION PLAN - AHU-2

D2

GENERAL NOTES:

1. REFER TO ELECTRICAL AND MECHANICAL DRAWINGS FOR ADDITIONAL

DEMOLITION AND ALTERATION NOTES.

2. CUTTING AND PATCHING: ANY EXISTING CONSTRUCTION THAT IS TO BE

REMOVED SHALL BE REMOVED CAREFULLY SO AS NOT TO DAMAGE ANY

EXISTING CONSTRUCTION THAT IS TO REMAIN.

3. ALL EXISTING FIREPROOFING REMOVED DURING DEMOLITION SHALL BE

PATCHED TO MATCH EXISTING.

4. CONTRACTOR SHALL MEASURE AIR AND WATER FLOWS AT AHU-2 AND AIRFLOW

AT RAF-2 AND REPORT RESULTS TO ENGINEER PRIOR TO PREPARING

EQUIPMENT SUBMITTALS.

5. RETAIN EXISTING BRANCH CIRCUITS TO FURTHEST EXTENT FEASIBLE FOR

REMOVED EQUIPMENT FOR RECONNECTION.

6. REPLACE CONTROLS DEVICES ASSOCIATED WITH AHU-2 AND RAF-2 SEQUENCE

OF OPERATIONS. REFER TO DRAWING ME7. AIRFLOW MEASURING STATIONS

SHALL BE REMOVED AND NOT REPLACED.

DEMOLITION SYMBOLS LEGEND:

DEMOLITION NOTE

LIMIT OF DEMOLITION

X

DEMOLITION NOTES:XX

1. DISCONNECT HYDRONIC AND DRAIN PIPING. REMOVE SUPPLY AND RETURN DUCT

TO POINTS INDICATED. REMOVE AHU. PAD TO REMAIN.

2. DISCONNECT AND REMOVE CONTROLS DEVICES. RETAIN WIRING. REFER TO I/O

POINTS LIST ON DRAWING ME7 .

3. RAF-2 HOUSING CANNOT BE REMOVED AND REPLACED DUE TO SURROUNDING

CONSTRUCTION. HOUSING TO REMAIN. REMOVE DUCT TRANSITION AND FLEXIBLE

CONNECTOR ON ONE END. REMOVE FAN MOTOR AND INTERNALS.

4. REMOVE FLEXIBLE DUCT CONNECTOR.

5. REMOVE DUCT ELBOW. SALVAGE AND CLEAN FOR REINSTALLATION.

6. REMOVE DRAIN LINES.

MATERIAL TO BE DEMOLISHED

Lic. No. 035249

STEVEN M. HOVIS

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026 09/15/2026

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text V

AutoCAD SHX Text V

AutoCAD SHX Text T

AutoCAD SHX Text C

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text T

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

0 6" 2'1' 3' 4' 5' 3/8"=1'-0"

DEMOLITION PLAN - AHU-3

AHU-3

A D3 D3

10'-2"

PAD

'-1

/2

RAF-3

1 2

FLEX

TYP OF 2

FD

4"CWS/R

1 1/2"HWS/R

MCC2

MAT

FRZ

REL

SAT

OA

RET

RAT

SCALE:

0 6" 2'1' 3' 4' 5'

3/8"=1'-0"

AHU-3 ELEVATIONA

D3 D3

FINISHED

FLOOR

PAD

WALL

RETURN

PLENUM

FILTER

COILS

3/

4"

7' -0

SUPPLY

FAN

AHU-3

FLEX

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

DEMOLITION PLAN - AHU-3

D3

GENERAL NOTES:

1. REFER TO ELECTRICAL AND MECHANICAL DRAWINGS FOR ADDITIONAL

DEMOLITION AND ALTERATION NOTES.

2. CUTTING AND PATCHING: ANY EXISTING CONSTRUCTION THAT IS TO BE

REMOVED SHALL BE REMOVED CAREFULLY SO AS NOT TO DAMAGE ANY

EXISTING CONSTRUCTION THAT IS TO REMAIN.

3. ALL EXISTING FIREPROOFING REMOVED DURING DEMOLITION SHALL BE

PATCHED TO MATCH EXISTING.

4. CONTRACTOR SHALL MEASURE AIR AND WATER FLOWS AT AHU-3 AND AIRFLOW

AT RAF-3 AND REPORT RESULTS TO ENGINEER PRIOR TO PREPARING

EQUIPMENT SUBMITTALS.

5. RETAIN EXISTING BRANCH CIRCUITS TO FURTHEST EXTENT FEASIBLE FOR

REMOVED EQUIPMENT FOR RECONNECTION.

6. REPLACE CONTROLS DEVICES ASSOCIATED WITH AHU-3 AND RAF-3 SEQUENCE

OF OPERATIONS. REFER TO DRAWING ME8. AIRFLOW MEASURING STATIONS

SHALL BE REMOVED AND NOT REPLACED.

DEMOLITION SYMBOLS LEGEND:

DEMOLITION NOTE

LIMIT OF DEMOLITION

X

DEMOLITION NOTES:XX

1. DISCONNECT HYDRONIC AND DRAIN PIPING. REMOVE SUPPLY AND RETURN DUCT

TO POINTS INDICATED. REMOVE AHU. PAD TO REMAIN.

2. DISCONNECT AND REMOVE CONTROLS DEVICES. RETAIN WIRING. REFER TO I/O

POINTS LIST ON DRAWING ME8.

3. REMOVE FAN, DUCT TRANSITIONS, AND FLEXIBLE CONNECTORS.

4. REMOVE HEATING COIL CIRCULATING PUMP.

5. REMOVE DRAIN LINES.

6. REMOVE VARIABLE FREQUENCY DRIVE. RETAIN BRANCH CIRCUIT FOR

RECONNECTION.

MATERIAL TO BE DEMOLISHED

Lic. No. 035249

STEVEN M. HOVIS

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026 09/15/2026

AutoCAD SHX Text T

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text T

AutoCAD SHX Text T

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text P

AutoCAD SHX Text P

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text T

AutoCAD SHX Text C

AutoCAD SHX Text M

AutoCAD SHX Text V

AutoCAD SHX Text V

AutoCAD SHX Text V

AutoCAD SHX Text

VFD

AutoCAD SHX Text

VFD

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

NOTES:

1. CONCRETE SHALL HAVE A MIN f'c = 4,000 PSI IN 28 DAYS.

2. REINFORCEMENT SHALL BE GRADE 60.

3. WATER AND CEMENT RATIO = .50.

4. AIR ENTRAINMENT SHALL BE 2% (±1%).

5. CONTRACTOR SHALL VERIFY MINIMUM REQUIRED HEIGHT OF EQUIPMENT

ABOVE PAD FOR INSTALLATION OF CONDENSATE DRAIN.

3/4" CHAMFER

4"

#4@12" EACH WAY

4"

1" C

LR

ROUGHEN CONTACT

SURFACE & APPLY

BONDING COMPOUND

WELDED WIRE FABRIC

WWF 6x6-W2.1xW2.1

(OR #3@8"OC)

#4 DOWEL, DRILL &

EPOXY INTO (E)FLOOR

SLAB @ 2'-0" AROUND

PERIMETER OF PAD

(4" MINIMUM EMBED)

6"

EDGE OF EQUIPMENT

EXISTING FLOOR

EXISTING PAD

POUR NEW CONC TO

MATCH EXISTING HEIGHT

T/PAD

T/(E)SLAB

SCALE: NONE

INTERIOR HOUSEKEEPING PAD EXTENSION DETAIL

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

MECHANICAL LEGEND, SPECIFICATIONS, AND DETAILS

ME1

CONSTRUCTION NOTE A AMPERE

AFF ABOVE FINISHED FLOOR

AFUE ANNUAL FUEL UTILIZATION EFFICIENCY

BHP BRAKE HORSEPOWER

BOD BOTTOM OF DUCT

BOP BOTTOM OF PIPE

BTU BRITISH THERMAL UNIT

BTUH BRITISH THERMAL UNIT PER HOUR

CA COMPRESSED AIR

CF CHEMICAL FEED, CUBIC FEET

CFM CUBIC FEET PER MINUTE

CR CONDENSER WATER RETURN

CS CONDENSER WATER SUPPLY

CWR CHILLED WATER RETURN

CWS CHILLED WATER SUPPLY

D DRAIN

DIA, Ø DIAMETER

DB DRY BULB

DBA DECIBELS, A WEIGHTED

DEG, ° DEGREE

DTR DUAL TEMPERATURE WATER RETURN

DTS DUAL TEMPERATURE WATER SUPPLY

DX DIRECT EXPANSION

DWG DRAWING

(E) EXISTING

EAT ENTERING AIR TEMPERATURE

EER ENERGY EFFICIENCY RATIO

EFF EFFICIENCY

EL, ELEV ELEVATION

ESP EXTERNAL STATIC PRESSURE

EWT ENTERING WATER TEMPERATURE

°F DEGREES FAHRENHEIT

FD FIRE DAMPER

FOR FUEL OIL RETURN

FOS FUEL OIL SUPPLY

FT FOOT, FEET

G GAS

GA GAGE

GAL GALLONS

GPH GALLONS PER HOUR

GPM GALLONS PER MINUTE

H HEIGHT

HD HEAD

HP HORSEPOWER

HR HOUR(S)

HWR HEATING WATER RETURN

HWS HEATING WATER SUPPLY

HZ FREQUENCY

ID INSIDE DIAMETER

IN INCHES

INWG INCHES WATER GAUGE

KW KILOWATT

L LENGTH

LAT LEAVING AIR TEMPERATURE

LB POUND(S)

LF LINEAR FEET

LPG LIQUEFIED PETROLEUM GAS (PROPANE)

LWT LEAVING WATER TEMPERATURE

MAX MAXIMUM

MBH THOUSAND BTU PER HOUR

MCA MINIMUM CIRCUIT AMPACITY

MIN MINIMUM

MOCP MAXIMUM OVERCURRENT PROTECTION

N/A NOT APPLICABLE

NIC NOT IN CONTRACT

NC NORMALLY CLOSED

NG NATURAL GAS

NO NORMALLY OPEN, NUMBER

NOM NOMINAL

NTS NOT TO SCALE

OA OUTSIDE AIR

OD OUTSIDE DIAMETER

% PERCENT

PD PRESSURE DROP OR DIFFERENTIAL

PH PHASE

PRV PRESSURE REDUCING OR REGULATING

VALVE

PSIG POUNDS PER SQUARE INCH GAGE

PSV PRESSURE SAFETY VALVE

R12, R22 REFRIGERANT (12, 22, ETC.)

RH RELATIVE HUMIDITY

RPM REVOLUTIONS PER MINUTE

SEER SEASONAL ENERGY EFFICIENCY RATIO

SF SQUARE FOOT, FEET

SHR SENSIBLE HEAT RATIO

SP STATIC PRESSURE

SPEC SPECIFICATION

SQ SQUARE

TD TEMPERATURE DIFFERENTIAL

TEMP TEMPERATURE

TOD TOP OF DUCT

TONS TONS OF REFRIGERATION

TSP TOTAL STATIC PRESSURE

T'STAT THERMOSTAT

TYP TYPICAL

V VOLTS

VAV VARIABLE AIR VOLUME

VTR VENT THRU ROOF

W WATT, WIDTH

WB WET BULB

MANUAL VOLUME DAMPER

FLEXIBLE DUCTWORK

TRANSITION IN DUCT SIZE

45° BRANCH CONNECTION

FIRE DAMPER IN WALL

FIRE DAMPER IN FLOOR,

CEILING OR ROOF

CONNECT TO EXISTING

INDICATES NUMBER OF

REVISIONS, CORRESPONDS

AIRFLOW

M

M

PIPE CAP

PUMP

THERMOMETER

PRESSURE GAUGE

UNION

PIPE TURNING DOWN

WYE STRAINER

PIPE TURNING UP

TEE DOWN

MOTOR OPERATED DAMPER

REVISION CLOUD

REVISION TRIANGLE

SYMBOLS

LEGEND

ABBREVIATIONS

TAG NO

CFM

DIFFUSER/GRILL TAG

HVAC SPECIFICATIONS

CONCENTRIC REDUCER

PIPE FLANGE

GLOBE VALVE

CHECK VALVE

BALL VALVE

BUTTERFLY VALVE

GATE VALVE

ECCENTRIC REDUCER

MOTORIZED 2-WAY VALVE

PNEUMATIC 2-WAY VALVE

SOLENOID VALVE

MOTORIZED 3-WAY VALVE

PNEUMATIC 3-WAY VALVE

CALIBRATED BALANCING VALVE

BACKFLOW PREVENTER

AIR VENT (AUTO)

PLUG VALVE

SAFETY RELIEF VALVE

PRESSURE REDUCING VALVE

TEMPERATURE SENSOR

FLOW SWITCH

AIR VENT (MANUAL)

EQUIPMENT TAG

PIPE FLOW ARROW

WITH REVISION NOTE

ACCESS DOOR

M

M

S

F

T

A

M

SUPPLY/OA DUCT SECTION OR

DIFFUSER/GRILLE

RETURN/EXHAUST DUCT SECTION

OR DIFFUSER/GRILLE

TRANSITION FROM RECTANGULAR

TO ROUND

45° BRANCH TO ROUND

TAKEOFF CONNECTION

FLEXIBLE CONNECTOR

90° ELBOW UP

90° ELBOW DOWN

45° CONICAL TAP

90° CONICAL TAP

WALL MOUNTED HUMIDISTAT OR

DUCT SMOKE DETECTOR

CONICAL SPIN-IN WITH DAMPER

WALL MOUNTED THERMOSTAT

HUMIDITY SENSOR

OR TEMPERATURE SENSOR

H

T

90° ELBOW WITH TURNING VANES

(RECTANGULAR DUCT)

90° RADIUS ELBOW

(RECTANGULAR DUCT)

45° RADIUS ELBOW

(RECTANGULAR DUCT)

TEE WITH TURNING VANES

(RECTANGULAR DUCT)

RADIUS TEE

(RECTANGULAR DUCT)

Y FITTING

(ROUND DUCT)

AHU-1

X-1

WALL MOUNTED SWITCH

1. DRAWINGS DO NOT INDICATE PIPING SUPPORT LOCATIONS AND DETAILS. CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ALL NECESSARY PIPE SUPPORTS. SELECTIONS OF PIPE SUPPORT TYPES, SIZES, AND LOCATIONS SHALL CONFORM TO MSS SP-58. SUPPORT SPACING SHALL COMPLY WITH MSS SP-58, INDIVIDUAL SPECIFICATION SECTIONS, OR

TABLE BELOW, WHICHEVER IS MORE STRINGENT.

PIPE SUPPORT (HORIZONTAL HANGER SPACING - VERTICAL SUPPORT SPACING)

PVC 4 FT 10 FT

STEEL 1" AND SMALLER 6 FT 10 FT

STEEL 1 1/4" - 2" 10 FT 10 FT

STEEL 2 1/2" AND LARGER 12 FT 15 FT

2. DUCTWORK SHALL BE G-90 GALVANIZED STEEL, FABRICATED, INSTALLED, AND SUPPORTED PER SMACNA STANDARDS FOR +/- 2.0 INWG. SUPPLY AND RETURN DUCTWORK SHALL BE LINED, THICKNESS TO MATCH EXISTING. SEAL DUCTWORK TO

ACHIEVE MINIMUM 95% TOTAL AIRFLOW.

3. PROVIDE AIR TURNING DEVICES IN DUCTWORK AT ANY CHANGE IN DIRECTION GREATER THAN 30 DEGREES. SQUARE THROAT ELBOWS WITHOUT TURNING VANES, MITERED ELBOWS, STRAIGHT RECTANGULAR AND ROUND DUCT TAPS, AND AIR

SCOOPS ARE NOT PERMITTED.

4. PROVIDE FLEXIBLE CONNECTIONS BETWEEN EQUIPMENT AND CONNECTING DUCTWORK. FLEXIBLE CONNECTORS SHALL BE 3 - 1/2" GLASS FABRIC DOUBLE COATED WITH NEOPRENE ATTACHED TO GALVANIZED STEEL STRIPS.

5. INTERIOR PIPING SHALL BE INSTALLED AS HIGH AS POSSIBLE AND ALL HYDRONIC PIPING SLOPED 1/8" PER FOOT BACK TOWARDS LOW POINT DRAINS. ALL PIPING SHALL BE CLEAN AND FREE OF DIRT AND SCALE AT TIME OF INSTALLATION.

6. PROVIDE AIR VENTS AT HIGH POINTS AND DRAINS AT LOW POINTS IN HYDRONIC PIPING SYSTEMS.

7. INSTALLATION OF FIELD MOUNTED CONTROL COMPONENTS SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR.

8. AN ASSOCIATED AIR BALANCE COUNCIL OR NATIONAL ENVIRONMENTAL BALANCING BUREAU CERTIFIED TESTING AND BALANCING CONTRACTOR SHALL BALANCE AIR AND WATER FLOWS AND SUBMIT REPORTS TO THE ENGINEER AND OWNER

FOR APPROVAL.

9. CONDENSATE DRAIN PIPING SHALL BE SCHEDULE 40 PVC, ASTM D 1785, SAME SIZE AS EQUIPMENT CONNECTION.

10. CHILLED WATER AND HEATING WATER PIPING SHALL BE CARBON STEEL, ASTM A53, SCHEDULE 40. 2" AND SMALLER PIPING SHALL BE THREADED WITH MALLEABLE IRON FITTINGS. 2-1/2" AND LARGER PIPING SHALL BE FLANGED OR WELDED WITH

CARBON STEEL FITTINGS.

11. CHILLED WATER PIPING INSULATION SHALL BE 1-INCH-THICK PRE-MOLDED CLOSED-CELL ELASTOMERIC FOAM. APPLY

ADHESIVE PER MANUFACTURER'S INSTRUCTIONS. SELF-SEALING STRIPS ARE NOT PERMITTED.

12. HEATING WATER PIPE INSULATION SHALL BE MINERAL FIBER, ASTM C 553, TYPE II WITH ASJ-SSL JACKET, 2-INCH-THICK FOR

2" AND LARGER PIPING AND 1-INCH-THICK FOR 1-1/2" AND SMALLER PIPING.

13. AFTER NEW EQUIPMENT HAS BEEN INSTALLED AND FILLED, CONTRACTOR SHALL RECHECK SYSTEM FILL PRESSURE, CHECK/SET EXISTING MAKEUP VALVE ACCORDINGLY, AND CHECK/SET EXISTING HEATING AND CHILLED WATER EXPANSION TANK CHARGES TO MATCH THE CALCULATED SYSTEM PRESSURE AFTER ALL AIR HAS BEEN PURGED FROM THE SYSTEM.

CO2 SENSOR

AIRFLOW RATE

CLEANOUT PLUG

DRAIN PIPE FULL SIZE

SAME AS PAN CONNECTION

SLOPE DOWN

1/8"/FT MIN

NOTE:

PROVIDE TRAP PER MANUFACTURER'S WRITTEN INSTRUCTIONS. WHEN INSTRUCTIONS ARE

NOT AVAILABLE, PROVIDE TRAP PER DETAIL. MINIMUM SIZE H1 AND H2 (IN INCHES) AS

FOLLOWS:

1. DRAW THRU UNITS

H1 = (FAN SUCTION PRESSURE) + 1"

H2 = 1/2 H1 + 1/2"

2. BLOW THRU UNIT

H1 = 1/2"

H2 = (FAN DISCHARGE PRESSURE) X 1.5

3. ALL UNITS H1 + H2 AT LEAST 4".

4. DO NOT REDUCE SIZE OF CONDENSATE DRAIN.

5. DISCHARGE CONDENSATE TO GRADE OR FLOOR DRAIN WITH AIR GAP EQUAL TO 2 TIMES

PIPE DIAMETER.

6. VERIFY ADEQUATE HEIGHT ABOVE FLOOR, CONCRETE PAD, ROOF OR CEILING FOR

INSTALLATION AND MAINTENANCE OF TRAP.

H

H

N O

TE

UNIT OR DRAIN

PAN BOTTOM

SCALE: NONE

CONDENSATE DRAIN DETAIL

Lic. No. 035249

STEVEN M. HOVIS

09/15/2026

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text C

AutoCAD SHX Text V

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

ELECTRICAL LEGEND,

ABBREVIATIONS, GENERAL

NOTES, AND SPECIFICATIONS ME2

CONSTRUCTION NOTE

DEMOLITION NOTE

SYMBOLS ABBREVIATIONS

MDP-1

MDP-1

INDICATES MULTIPLE HOMERUN CIRCUITS FROM SINGLE

PANEL/CIRCUIT.

HOMERUN TO PANEL AND CIRCUIT NUMBER AS INDICATED.

CONDUCTOR AND RACEWAY SIZE AS INDICATED IN

PANELBOARD SCHEDULE, UON.

HOMERUN CIRCUIT TO OTHER CIRCUIT. CONDUCTORS AND

RACEWAY SIZE AS NOTED.

CONDUCTORS AND RACEWAYS

CONDUIT RUN EXPOSED OR ABOVE CEILING

EQUIPMENT CONNECTION

POWER

(3)#12

IN 3/4"C

CONDUIT RUN CONCEALED UNDER FLOOR

JUNCTION BOX

CONDUIT TURNING DOWN

CONDUIT TURNING UP

PANELBOARD PANELBOARD NUMBER

VOLTAGE

POLES, WIRES

AMP RATING

POINT OF CONNECTION

NEW-TO-EXISTING

LIMIT OF DEMOLITION

A AMPERE

AC ABOVE COUNTER

A/E ARCHITECT/ENGINEER

AF AMP FRAME

AT AMP TRIP

AFF ABOVE FINISHED FLOOR

APPROX APPROXIMATE

BCSD BARE COPPER SOFT DRAWN

C CONDUIT

CB CIRCUIT BREAKER

DWG DRAWING

(E) EXISTING

ECB ENCLOSED CIRCUIT BREAKER

EMT ELECTRICAL METALLIC TUBING

FD FUSED DISCONNECT

FMC FLEXIBLE METALLIC CONDUIT

FTL FEED THROUGH LUGS

FVNR FULL VOLTAGE NON REVERSING

G, GND GROUND

GFI GROUND FAULT INTERRUPTING

HOA HAND-OFF-AUTO

HP HORSEPOWER

HVAC HEATING, VENTILATING, AND AIR CONDITIONING

JB JUNCTION BOX

KVA KILOVOLTAMPS

LFMC LIQUID-TIGHT FLEXIBLE METALL CONDUIT

MAX MAXIMUM

MC METAL CLAD CABLE

MCA MIN CIRCUIT AMPACITY

MCB MAIN CIRCUIT BREAKER

MIN MINIMUM

MLO MAIN LUGS ONLY

MOPD MAX OVERCURRENT PROTECTION DEVICE

N NEUTRAL

NF NON FUSED

NIC NOT IN CONTRACT

OCPD OVERCURRENT PROTECTION DEVICE

P PHASES OR POLES

PB PUSHBUTTON

RNC RIGID NONMETALLIC CONDUIT

RSC RIGID STEEL CONDUIT

SE SERVICE ENTRANCE

SPD SURGE PROTECTION DEVICE

STP SHIELDED TWISTED PAIR

TVSS TRANSIENT VOLTAGE SURGE SUPPRESSION

TYP TYPICAL

UG UNDERGROUND

UON UNLESS OTHERWISE NOTED

UTP UNSHIELDED TWISTED PAIR

V VOLTS

VFD VARIABLE FREQUENCY DRIVE

W WIRES

W/ WITH

W/O WITHOUT

WP WEATHERPROOF

XFMR TRANSFORMER

LEGEND

LP3

120/208 3P/4W 225A

MCB

STANDARD MOUNTING HEIGHTS

DEVICE MOUNTING HEIGHT (AFF) TO:

MOTOR STARTER AND VFD 6'-6" MAX TOP

1. ALL MOUNTING HEIGHTS SHALL BE AS LISTED ABOVE UNLESS

OTHERWISE INDICATED ON DRAWINGS.

2. ALL MOUNTING HEIGHTS SHALL BE IN ACCORDANCE WITH THE

AMERICANS WITH DISABILITIES ACT.

GENERAL NOTES:

1. THESE DRAWINGS ARE SCHEMATIC IN NATURE AND INDICATE THE GENERAL AND

APPROXIMATE LOCATION OF EQUIPMENT AND EXISTING CONSTRUCTION.

FIELD-VERIFY ALL DIMENSIONS AND LOCATIONS.

2. THESE DRAWINGS MAY NOT INDICATE ALL FITTINGS, PARTS AND ACCESSORIES

THAT ARE REQUIRED FOR A COMPLETE AND FUNCTIONAL SYSTEM. NO EXCLUSION

FROM OR LIMITATION IN THE SYMBOLISM USED ON THE DRAWINGS FOR THE WORK,

OR THE LANGUAGE USED IN THE SPECIFICATIONS FOR THE WORK SHALL BE

INTERPRETED AS A REASON FOR OMITTING THE APPURTENANCES OR

ACCESSORIES NECESSARY TO COMPLETE AND REQUIRED WORK, SYSTEM, OR ITEM

OF EQUIPMENT.

3. ALL ELECTRICAL WORK ON THIS PROJECT SHALL BE INSTALLED IN ACCORDANCE

WITH THE 2021 VIRGINIA UNIFORM STATEWIDE BUILDING CODE, NFPA 70-2020

(NATIONAL ELECTRICAL CODE), NFPA 72-2019 (NATIONAL FIRE ALARM CODE),

CONSTRUCTION AND PROFESSIONAL SERVICES MANUAL: 2026 CPSM EDITION,

REVISION 0 (JULY 31, 2026), CHAPTER 2 OF 2010 ADA STANDARDS FOR ACCESSIBLE

DESIGN DATED SEPTEMBER 15, 2010, AND CHAPTERS 1 AND 3 THROUGH 11 OF

STANDARDS FOR ACCESSIBLE AND USABLE BUILDINGS AND FACILITIES (ICC

A117.1-2017) APPROVED MARCH 28, 2017.

4. MATERIALS, EQUIPMENT, AND SYSTEMS SHALL MEET ALL PERTINENT

REQUIREMENTS OF THE AMERICAN SOCIETY FOR TESTING MATERIALS (ASTM), THE

UNDERWRITERS LABORATORY (UL), THE NATIONAL ELECTRIC MANUFACTURER'S

ASSOCIATION (NEMA), NATIONAL FIRE PROTECTION ASSOCIATION (NFPA),

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI), AND OTHER NATIONALLY

RECOGNIZED AGENCIES.

5. COORDINATE ARRANGEMENT, MOUNTING, AND SUPPORT OF ELECTRICAL

EQUIPMENT TO AVOID INTERFERENCES WITH ELECTRICAL AND OTHER TRADES.

COORDINATE WORK WITH EXISTING CONDITIONS INCLUDING BEAMS, COLUMNS,

SITE FEATURES, AND OTHER CONSTRUCTION WHETHER OR NOT SUCH IS SHOWN

ON THE DRAWINGS. SET SLEEVES IN CAST-IN-PLACE CONCRETE AND MASONRY

WALLS, AS THEY ARE CONSTRUCTED. COORDINATE LOCATION OF ACCESS PANELS

AND DOORS FOR ELECTRICAL EQUIPMENT THAT ARE BEHIND FINISHED SURFACES

OR ARE OTHERWISE CONCEALED. COORDINATE AMPACITY, VOLTAGE, PHASING,

OVERCURRENT PROTECTION, AND LOCAL DISCONNECT REQUIREMENTS WITH

ACTUAL EQUIPMENT PROVIDED.

6. MAINTAIN A SET OF AS-BUILT RED-LINE MARKUPS INDICATING ACTUAL

INSTALLATION. DELIVER TO OWNER AT CONCLUSION OF PROJECT.

7. PROVIDE PRODUCT DATA SUBMITTALS FOR THE VFD'S. MATERIALS INSTALLED

PRIOR TO OBTAINING AN APPROVED SUBMITTAL ARE AT CONTRACTOR'S RISK.

8. CUT EXISTING CONSTRUCTION AS NEEDED FOR DEMOLITION AND CONSTRUCTION.

USE CUTTING METHODS THAT MINIMIZE DAMAGE TO FINISHED AND ADJACENT

SURFACES. PATCH EXISTING AND NEW CONSTRUCTION AND REPAIR ALL DAMAGED

SURFACES TO MATCH EXISTING. PATCH UNUSED AND ABANDONED PENETRATIONS.

9. CONTRACTOR SHALL ADVISE A/E IMMEDIATELY OF DISCREPANCIES WITHIN

DRAWINGS. MINOR DEVIATIONS FROM THE PLANS MAY BE MADE TO AVOID MINOR

CONFLICTS. WHERE MAJOR CONFLICTS ARE ENCOUNTERED, THE AFFECTED WORK

SHALL NOT BE INSTALLED UNTIL THE CONFLICT HAS BEEN RESOLVED. THE A/E IS

NOT RESPONSIBLE FOR THE CONSEQUENCES OF PROCEEDING WITH WORK BASED

ON CONTRACTOR INTERPRETATION OR ON DIRECTION FROM OTHER PARTIES.

10.CONTACT INFORMATION

SITE REPRESENTATIVE: KAYLIN BREWER: 260.580.4909

PANELBOARD, HATCHED AREA IS

DESIGNATED WORKING SPACE,

PAINTED PER SPECIFICATIONS AND

CPSM MANUAL

NON-FUSIBLE DISCONNECT

VARIABLE FREQUENCY DRIVE WITH BYPASS AND

LOCKABLE IN "OFF" POSITION

ELECTRICAL SPECIFICATIONS

RACEWAYS AND BOXES

A. MATERIALS:

EMT - ANSI C80.3, COMPRESSION FITTING ONLY, MIN SIZE 3/4-INCH

LFMC - MIN SIZE 3/4-INCH

SET SCREW FITTINGS SHALL NOT BE USED

B. INDOOR RACEWAY APPLICATIONS:

EXPOSED OR CONCEALED: EMT, UON

BOXES AND ENCLOSURES: NEMA 250, TYPE 1, UON

C. USE UP TO 72 INCHES OF LFMC FOR CONNECTION TO VIBRATING EQUIPMENT INCLUDING TRANSFORMERS AND MOTOR-DRIVEN EQUIPMENT.

WIRING METHODS

A. SINGLE CONDUCTORS SHALL BE COPPER, #12 MINIMUM CONDUCTOR SIZE, SOLID FOR #10 AWG AND SMALLER, STRANDED FOR #8 AWG AND LARGER. FOR ABOVE-GROUND APPLICATIONS USE THHN-THWN, 600VAC INSULATION.

B. RACEWAY APPLICATIONS:

BRANCH CIRCUITS: SINGLE CONDUCTORS IN RACEWAY, UON

ELECTRICAL IDENTIFICATION

A. EQUIPMENT IDENTIFICATION: PROVIDE LABELS FOR VARIABLE FREQUENCY DRIVES, AND AS ADDITIONALLY INDICATED. LABELS SHALL BE LAMINATED ACRYLIC, WITH 1/2-INCH ENGRAVED BLACK LETTERING ON 1-1/2-INCH WHITE STOCK ATTACHED WITH SCREWS. LABEL SHALL INDICATE EQUIPMENT FED AND ASSOCIATED CIRCUIT SOURCE.

B. USE VINYL OR VINYL-CLOTH, SELF-ADHESIVE, WRAPAROUND TYPE TAPE MARKERS FOR WIRE. FOLLOW THESE WIRE COLOR CODING CONVENTIONS.

CONDUCTOR 480/277V

PHASE A BROWN

PHASE B ORANGE

PHASE C YELLOW

GROUND GREEN

SUPPORT AND ANCHORAGE

A. PROVIDE SUPPORT AND ANCHORAGE THAT ARE ADEQUATE IN TENSION, SHEAR, AND PULLOUT FORCE TO RESIST MAXIMUM LOADS CALCULATED OR IMPOSED WITH A MINIMUM STRUCTURAL SAFETY

FACTOR OF FIVE.

B. STEEL SLOTTED SUPPORT SYSTEMS: COMPLY WITH MFMA-3 FACTORY FABRICATED COMPONENTS FOR FIELD ASSEMBLY WITH FINISH SUITABLE FOR THE ENVIRONMENT.

C.FOR ATTACHMENT TO CONCRETE AND SOLID MASONRY, USE WEDGE-TYPE, ZINC-COATED STEEL EXPANSION ANCHOR FASTENERS. DRILL HOLES AT LOCATIONS AND DEPTHS THAT AVOID REINFORCING BARS. FOR CONNECTIONS TO HOLLOW MASONRY USE ALL-STEEL SPRINGHEAD TYPE TOGGLE BOLTS.

D. HANGER RODS TO BE THREADED STEEL.

E. FOR CONNECTIONS TO LIGHT STEEL USE SHEET METAL SCREWS.

F. SEPARATE DISSIMILAR METALS AND METAL PRODUCTS FROM CONTACT WITH WOOD OR CEMENTITIOUS MATERIALS BY PAINTING EACH METAL SURFACE IN AREA OF CONTACT WITH A BITUMINOUS

COATING OR BY OTHER PERMANENT SEPARATION.

G.RACEWAY SUPPORT INTERVALS

RACEWAY MAX DISTANCE MAX SUPPORT MAX LENGTH

TYPE TO FIRST SUPPORT INTERVAL OF RUN

LFMC 12 INCHES 54 INCHES 72 INCHES

EMT 36 INCHES 120 INCHES NONE

VARIABLE FREQUENCY MOTOR CONTROLLERS OR DRIVES (VFC OR VFD).

A. PROVIDE SUBMITTALS THAT INCLUDE DIMENSIONS, CAPACITY, OPERATING CHARACTERISTICS, AND ELECTRICAL CHARACTERISTICS. THE SUBMITTAL SHALL INCLUDE A WIRING DIAGRAM INDICATING ALL

POWER, SIGNAL AND CONTROL WIRING REQUIREMENTS.

B. PROVIDE VFD SUITABLE FOR THE APPLICATION AND COMPATIBLE WITH THE HVAC EQUIPMENT MOTOR LOAD. COORDINATE WITH OTHER TRADES INCLUDING CONTROL VENDOR AND EQUIPMENT

MANUFACTURER FOR THE INSTALLED EQUIPMENT.

C. PROVIDE DRIVE OR CONTROLLER THAT IS COMPLIANT WITH IEEE 519 GUIDE FOR HARMONIC CONTENT AND CONTROL.

D. PROVIDE VARIABLE-FREQUENCY MOTOR CONTROLLER, CONSISTING OF POWER CONVERTER THAT EMPLOYS PULSE-WIDTH-MODULATED INVERTER, FACTORY BUILT AND TESTED IN AN ENCLOSURE, WITH INTEGRAL DISCONNECTING MEANS AND OVERCURRENT AND OVERLOAD PROTECTION; LISTED AND LABELED BY AN NATIONALLY RECOGNIZED TESTING LABORATORY AS A COMPLETE UNIT; ARRANGED TO PROVIDE SELF-PROTECTION, AND VARIABLE-SPEED CONTROL OF ONE OR MORE THREE-PHASE INDUCTION MOTORS BY ADJUSTING OUTPUT VOLTAGE AND FREQUENCY.

E. PROVIDE WITH NEMA 250, TYPE 1 ENCLOSURE.

F. PROVIDE VFD THAT IS LISTED AND LABELED FOR INTEGRATED SHORT-CURRENT CURRENT (WITHSTAND) RATING SUITABLE FOR THE APPLICATION.

G.DESIGN AND RATING: TO MATCH THE HVAC LOAD SCHEDULED ON THE MECHANICAL DRAWINGS.

H. OUTPUT RATING: THREE PHASE; 10-60 HERTZ WITH VOLTAGE PROPORTIONAL TO FREQUENCY THROUGHOUT VOLTAGE RANGE; MAXIMUM VOLTAGE EQUALS INPUT VOLTAGE OF 460-480 VOLTS.

I. PROVIDE WITH PROVISIONS TO BE LOCKED "OFF".

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026

AutoCAD SHX Text E

AutoCAD SHX Text

JB

AutoCAD SHX Text

XXXA

AutoCAD SHX Text

VFD

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

6"0 1' 2' 5' 1/2"=1'-0"

MECHANICAL PLAN - AHU-1

RAF-1

AHU-1

(E)42x24

(E)48x24

(E)36x34

(E)34x34

A

ME3 ME3

(E)48x24

(E)CONTROL

PANEL

2 3 11

FLEX

TYP OF 2

FD

MCC1 (REFER TO

DRAWING ME4)

VFD 7

MCC1 (REFER TO

DRAWING ME4)

VFD 5

FRZMAT

SAT

RAT

RET

REL

OA

SCALE:

6"0 1' 2' 5'

1/2"=1'-0"

AHU-1 ELEVATIONA

ME3 ME3

(E)34x34

AHU-1

(E)FINISHED

FLOOR

(E)WALL(E)WALL

FLEX

FLEX

PAD

EXTENSION

PAD

EXTENSION

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

GENERAL NOTES:

1. NEW AIR HANDLING UNITS SHALL FIT WITHIN AVAILABLE SPACE AND SHALL BE

BROKEN DOWN INTO COMPONENT PARTS WHICH CAN BE DELIVERED TO THE

LOCATION THROUGH AVAILABLE BUILDING OPENINGS AND ACCESS AISLES AND

REASSEMBLED IN PLACE. CONTRACTOR SHALL BE RESPONSIBLE FOR

DETERMINING THE AVAILABLE CLEARANCES IN THE FIELD AND CONVEYING TO

THE MANUFACTURER PRIOR TO SUBMITTING PRODUCT DATA SUBMITTALS.

2. PROVIDE CONDENSATE DRAIN PIPING FULL SIZE TO FLOOR DRAIN.

3. REWORK BRANCH CIRCUITS AS REQUIRED TO PROVIDE VFD'S.

4. REFER TO BRANCH CIRCUIT SCHEDULE ON DRAWING ME6 FOR REWORKED

BRANCH CIRCUITS.

5. REQUIRED ELECTRICAL CLEARANCES ARE SHOWN AS HATCHED AREAS.

CONSTRUCTION NOTES:

1. PROVIDE PAD EXTENSION.

2. PROVIDE UNIT ON PAD. RECONFIGURE HYDRONIC PIPING AS REQUIRED TO

RECONNECT TO COILS. PROVIDE SUPPLY AND RETURN DUCT AND RECONNECT

TO EXISTING AT POINTS INDICATED. PROVIDE FLEX CONNECTORS IN SUPPLY AND

RETURN DUCTS.

3. PROVIDE CONTROLS DEVICES AND RECONNECT WIRING. REFER TO I/O POINTS

LIST ON DRAWINGS ME7.

4. PROVIDE FAN, DUCT TRANSITIONS, AND FLEXIBLE CONNECTORS.

5. REPLACE FLEXIBLE METAL CONDUIT FROM JUNCTION BOX ABOVE AHU-1 WITH

LIQUID FLEXIBLE METAL CONDUIT. STRAP LIQUID FLEXIBLE METAL CONDUIT

WITHIN 12" OF BOXES AND DO NOT EXCEED MORE THAN 3' WITHOUT SUPPORT.

6. PROVIDE 15 HP, UL LISTED VFD WITH BYPASS AND 6 POLES ON THE LOAD SIDE.

PROVIDE WITH 30" W x 36" L WORKING CLEARANCES IN FRONT OF VFD.

7. PROVIDE 5 HP, UL LISTED VFD WITH BYPASS. PROVIDE WITH 30" W x 36" L

WORKING CLEARANCES IN FRONT OF VFD.

XX

NEW WORK PLAN - AHU-1

ME3Lic. No. 035249

STEVEN M. HOVIS

Lic. No. 0402061572

JOSEPH R. GOSSEN

09/15/2026 09/15/2026

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text T

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text C

AutoCAD SHX Text S

AutoCAD SHX Text D

AutoCAD SHX Text T

AutoCAD SHX Text T

AutoCAD SHX Text T

AutoCAD SHX Text E

AutoCAD SHX Text

VFD

AutoCAD SHX Text

VFD

AutoCAD SHX Text E

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

AutoCAD SHX Text H

AutoCAD SHX Text P

AutoCAD SHX Text R

AutoCAD SHX Text O

AutoCAD SHX Text E

AutoCAD SHX Text S

AutoCAD SHX Text S

AutoCAD SHX Text I

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text A

AutoCAD SHX Text L

AutoCAD SHX Text E

AutoCAD SHX Text N

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text E

AutoCAD SHX Text E

AutoCAD SHX Text R

AutoCAD SHX Text F

AutoCAD SHX Text V

AutoCAD SHX Text A

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text O

AutoCAD SHX Text C

AutoCAD SHX Text O

AutoCAD SHX Text N

AutoCAD SHX Text M

AutoCAD SHX Text M

AutoCAD SHX Text I

AutoCAD SHX Text A

AutoCAD SHX Text I

AutoCAD SHX Text R

AutoCAD SHX Text G

AutoCAD SHX Text I

AutoCAD SHX Text N

AutoCAD SHX Text F

AutoCAD SHX Text O

AutoCAD SHX Text L

AutoCAD SHX Text T

0 6" 2'1' 3' 4' 5' 3/8"=1'-0"

MECHANICAL PLAN - AHU-2

RAF-2

AHU-2

(E)PLENUM

(E)36x26

(E )3

6x

(E )5

0x 22(E

)3 6x

A

ME4 ME4

FD

7 1098(E)MCC1

MCC1

MCC1

MAT FRZ

SAT

RAT

OA

RET

REL

AHU-2

SCALE:

0 6" 2'1' 3' 4' 5'

3/8"=1'-0"

AHU-2 ELEVATIONA

ME4 ME4

(E)FINISHED

FLOOR

PAD

EXTENSION

(E)WALL

(E)PAD

NVCC - ANNANDALE CAMPUS

CE REPLACE AHUs

PROJECT CODE: M25NV120

ANNANDALE, VIRGINIA

26007 2026-09-15

DATE:PROJECT NO:

VIRGINIA A&E, PLLC

1115 VISTA PARK DRIVE

FOREST, VIRGINIA 24551

PHONE: (434) 316-6001

Drawing No.:

1"

Full Scale Verification

0"

REVISIONS DATEBYNO.

NEW WORK PLAN - AHU-2

ME4

GENERAL NOTES:

1. NEW AIR HANDLING UNITS SHALL FIT WITHIN AVAILABLE SPACE AND SHALL BE

BROKEN DOWN INTO COMPONENT PARTS WHICH CAN BE DELIVERED TO THE

LOCATION THROUGH AVAILABLE BUILDING OPENINGS AND ACCESS AISLES AND

REASSEMBLED IN PLACE. CONTRACTOR SHALL BE RESPONSIBLE FOR

DETERMINING THE AVAILABLE CLEARANCES IN THE FIELD AND CONVEYING TO

THE MANUFACTURER PRIOR TO SUBMITTING PRODUCT DATA SUBMITTALS.

2. PROVIDE CONDENSATE DRAIN PIPING FULL SIZE TO FLOOR DRAIN.

3. PROVIDED OVER CURRENT PROTECTIVE DEVICES SHALL BE A MINIMUM OF 22

KAIC.

4. REWORK BRANCH CIRCUITS AS REQUIRED TO PROVIDE VFD'S.

5. REFER TO BRANCH CIRCUIT SCHEDULE ON DRAWING ME6 FOR REWORKED

BRANCH CIRCUITS.

6. REQUIRED ELECTRICAL CLEARANCES ARE SHOWN AS HATCHED AREAS.

CONSTRUCTION NOTES:

1. PROVIDE PAD EXTENSION.

2. PROVIDE UNIT ON PAD. RECONFIGURE HYDRONIC PIPING AS REQUIRED TO

RECONNECT TO COILS. PROVIDE SUPPLY AND RETURN DUCT AND RECONNECT

TO EXISTING AT POINTS INDICATED. PROVIDE FLEX CONNECTORS IN SUPPLY AND

RETURN DUCTS.

3. PROVIDE CONTROLS DEVICES AND RECONNECT WIRING. REFER TO I/O POINTS

LIST ON DRAWING ME7.

4. PROVIDE MOTOR. PROVIDE INTERNALS INSIDE EXISTING FAN HOUSING. PROVIDE

DUCT TRANSITION AND FLEXIBLE CONNECTOR.

5. PROVIDE FLEXIBLE CONNECTOR.

6. REINSTALL SALVAGED DUCT ELBOW.

7. PROVIDE 20A OVER CURRENT PROTECTION DEVICE TO REPLACE EXISTING OVER

CURRENT PROTECTION DEVICE ASSOCIATED WITH AHU-1.

8. PROVIDE 20A OVER CURRENT PROTECTION DEVICE TO REPLACE EXISTING OVER

CURRENT PROTECTION DEVICE ASSOCIATED WITH RAF-1.

9. PROVIDE 20A OVER CURRENT PROTECTION DEVICE TO REPLACE EXISTING OVER

CURRENT PROTECTION DEVICE ASSOCIATED WITH AHU-2.

10. PROVIDE 20A OVER CURRENT PROTECTION DEVICE TO REPLACE EXISTING OVER

CURRENT PROTECTION DEVICE ASSOCIATED WITH RAF-2.

11. PROVIDE 15 HP, UL LISTED VFD WITH BYPASS AND 6 POLES ON THE LOAD SIDE.

PROVIDE WITH 30" W x 36" L WORKING…